Everybody knows the benefits of interval training. You are going to need a decent timer to help you stay on track and avoid losing focus. The Set Starter Interval Timer can help you do just that. You can wear this on your thumb to easily time your workouts. It also provides vibration alerts to keep you on track. It has 10 preset intervals and can be programmed easily. It has a REPEAT feature that supports up to 100 consecutive alerts. Whether you are interested in weight lifting, CrossFit, or HIIT, this device has you covered. You can get it on Kickstarter.